Science

Facts about fluorosis – not a worry in New Zealand - Open Parachute

Ken Perrott Sep 20, 2017

A recent issue of the Fluoride Exposed Newsletter gives us the facts about dental fluorosis – a subject very often misrepresented by opponents of community water fluoridation. Ever notice how words ending with “-osis” sound a bit scary?  That’s because “-osis” is a suffix (from the Greek) commonly used to describe disorders or abnormal states. Tuberculosis, multiple sclerosis…no fun. Those … Read More

We need more post-publication peer review - Open Parachute

Ken Perrott Sep 18, 2017

We often tout peer review as the reason for accepting the veracity of published scientific studies? But how good is it really? Does it ever match the ideal picture people have of it? And what about peer review before and after publication – are we neglecting these important stages? Pre-publication peer review Here I mean the collective process of evaluating … Read More

Climate change and recent actions of NZ political parties - Public Health Expert

Public Health Expert Sep 15, 2017

Prof Nick Wilson, Prof Richard Edwards, Dr Cristina Cleghorn, Prof Michael Baker, Dr Caroline Shaw, A/Prof Ralph Chapman, Prof Philippa Howden-Chapman The health organisation OraTaiao convened a group of experts to analyse the climate change policies of NZ political party policies. It gave the highest grade to the Green Party, then the Labour Party, and then The Opportunities Party … Read More

Cassini plunges into Saturn tonight – a grand finale - Open Parachute

Ken Perrott Sep 15, 2017

After two decades in space, NASA’s Cassini spacecraft is nearing the end of its remarkable journey of exploration. Having expended almost every bit of the rocket propellant it carried to Saturn, operators are deliberately plunging Cassini into the planet to ensure Saturn’s moons will remain pristine for future exploration. Watch live coverage of Cassini’s end of mission on … Read More

Explorers probe hidden continent of Zealandia - Guest Work

Guest Work Sep 13, 2017

By Rupert Sutherland, Victoria University of Wellington Zealandia made global headlines earlier this year when scientists announced that it counts as a new continent. Now it is coming under closer scientific scrutiny. We are currently halfway through an expedition to drill into this vast underwater plateau of continental crust, and we can already reveal that Zealandia’s geography … Read More

Future Medicine: Organising Human Brain Cells on a Silicon Chip - Infrequently Asked Questions

Lynley Hargreaves Sep 13, 2017

Forget petri dishes: a team from the University of Auckland is using a Royal Society Te Apārangi Marsden Fund grant to organise human neural cells into grids. The group then stimulate the cells with electrodes, to better understand real communication in the brain and to mimic the effects of common neurological conditions such as epilepsy and stroke. Associate Professor Charles … Read More

What’s with the anti-fluoridationist promotion of dental health programmes? - Open Parachute

Ken Perrott Sep 11, 2017

Anti-fluoride campaigners often promote dental health programmes which they argue are alternatives to community water fluoridation. But seem not to understand that these programmes usually include fluoride dental treatments. It’s probably a result of some tactical thinking – “let’s promote a positive message to overcome the publicly perceived negativity associated with our opposition to a social health policy like fluoridation.” In fact, some New Zealand … Read More

Massive sunspots and huge solar flares mean unexpected space weather for Earth - Guest Work

Guest Work Sep 08, 2017

By Alexa Halford, Dartmouth College; Brett Carter, RMIT University, and Julie Currie, RMIT University If you still have your solar viewing glasses from the eclipse, now is a good time to slap them on and look up at the sun. You’ll see two big dark areas visible on our star. These massive sunspots are … Read More

Fluoridation not associated with ADHD – a myth put to rest - Open Parachute

Ken Perrott Sep 01, 2017

 The myth of community water fluoridation causing attention deficit hyperactivity disorder (ADHD) is just not supported by the data. I show this in a new paper accepted for publication in the British Dental Journal. This should remove any validity for the claims about ADHD by anti-fluoride campaigners. Mind you, I do not expect them to stop making those claims. The … Read More